Submitted:
19 December 2021
Posted:
21 December 2021
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Abstract
Room temperature superconductivity has recently been reported for a carbonaceous sulfur hydride (CSH) under high pressure by Snider et al [1]. The paper reports sharp drops in magnetic susceptibility as a function of temperature for five different pressures, that are interpreted as signaling a superconducting transition. Here I question the validity and faithfulness of the magnetic susceptibility data presented in the paper by comparison with the measured raw data reported by two of the authors of ref. [2]. This invalidates the assertion of the paper [1] that the susceptibility measurements support the case for superconductivity in this compound.
Keywords:
hydride superconductor
; room temperature superconductor
; pressure
; diamond anvil cell
; ac magnetic susceptibility
; raw data
; background signal
; random noise
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